body,html {
  margin:0;
  padding:0;
  width:100%;
  height:100%;
}

#main {
  width:70%;
  height:80%;
  margin:30px auto;
}
.con {
  margin-top:10px;
  margin-left:300px;
}
.title {
    width:600px;
    font-size:25px;
    text-align:center;
    margin-left:300px;
}

